<?
/**
* Smarty plugin
* @package Smarty
* @subpackage plugins
*/

/**
* Smarty function plugin
* Requires PHP >= 4.3.0
* -------------------------------------------------------------
* Type: function
* Name: fckeditor
* Version: 1.0
* Author: gazoot (gazoot care of gmail dot com)
* Purpose: Creates a FCKeditor, a very powerful textarea replacement.
* -------------------------------------------------------------
* @param InstanceName Editor instance name (form field name)
* @param BasePath optional Path to the FCKeditor directory. Need only be set once on page. Default: /FCKeditor/
* @param Value optional data that control will start with, default is taken from the javascript file
* @param Width optional width (css units)
* @param Height optional height (css units)
* @param ToolbarSet optional what toolbar to use from configuration
* @param CheckBrowser optional check the browser compatibility when rendering the editor
* @param DisplayErrors optional show error messages on errors while rendering the editor
*
* Default values for optional parameters (except BasePath) are taken from fckeditor.js.
*
* All other parameters used in the function will be put into the configuration section,
* CustomConfigurationsPath is useful for example.
* See http://wiki.fckeditor.net/Developer%27s_Guide/Configuration/Configurations_File for more configuration info.
*/
function smarty_function_fckeditor($params, &$smarty){
	if(!isset($params['InstanceName']) || empty($params['InstanceName'])){
		$smarty->trigger_error('fckeditor: required parameter "InstanceName" missing');
	}

	static $base_arguments = array();
	static $config_arguments = array();

	// Test if editor has been loaded before
	if(!count($base_arguments)) $init = TRUE;
	else $init = FALSE;

	// BasePath must be specified once.
	if(isset($params['BasePath'])){
		$base_arguments['BasePath'] = $params['BasePath'];
	}else if(empty($base_arguments['BasePath'])){
		$base_arguments['BasePath'] = '/FCKeditor/';
	}

	$base_arguments['InstanceName'] = $params['InstanceName'];

	if(isset($params['Value'])) $base_arguments['Value'] = stripslashes($params['Value']);
	if(isset($params['Width'])) $base_arguments['Width'] = $params['Width'];
	if(isset($params['Height'])) $base_arguments['Height'] = $params['Height'];
	if(isset($params['ToolbarSet'])) $base_arguments['ToolbarSet'] = $params['ToolbarSet'];
	if(isset($params['CheckBrowser'])) $base_arguments['CheckBrowser'] = $params['CheckBrowser'];
	if(isset($params['DisplayErrors'])) $base_arguments['DisplayErrors'] = $params['DisplayErrors'];
	
	// Use all other parameters for the config array (replace if needed)
	$other_arguments = array_diff_assoc($params, $base_arguments);
	$config_arguments = array_merge($config_arguments, $other_arguments);

	$out = '';

	if($init){
		$out .= '<script type="text/javascript" src="' . $base_arguments['BasePath'] . 'fckeditor.js"></script>';
	}

	$out .= "\n<script type=\"text/javascript\">\n";
	$out .= "var oFCKeditor = new FCKeditor('" . $base_arguments['InstanceName'] . "');\n";

	foreach($base_arguments as $key => $value){
		if(!is_bool($value)){
			// Fix newlines, javascript cannot handle multiple line strings very well.
			$value = '"' . preg_replace("/[\r\n]+/", '" + $0"', addslashes($value)) . '"';
		}
		$out .= "oFCKeditor.$key = $value; ";
	}

	foreach($config_arguments as $key => $value){
		if(!is_bool($value)){
			$value = '"' . preg_replace("/[\r\n]+/", '" + $0"', addslashes($value)) . '"';
		}
		$out .= "oFCKeditor.Config[\"$key\"] = $value; ";
	}
	$out .= "\noFCKeditor.Create();\n";
	$out .= "</script>\n";

	return $out;
} 
?>